Functions
● The BCU converts the battery string power. When the consistency between
battery strings is poor, the BCU controls the current balance between battery
strings through voltage boosting and balance adjustment to ensure reliable
system operation.
● The BCU implements communication inside a battery cabinet, between
cabinets, and between the UPS and network management system, and
provides battery management and protection against exceptions.
Specications
● Dimensions (H x W x D): 130 mm x 442 mm x 550 mm
● Weight: ≤ 35 kg
4.4.3 Monitoring Interface Unit
The monitoring interface unit provides the battery cabinet parallel ports, FE port,
RS485 port, and EPO port.
Figure 4-16 Monitoring interface unit
Table 4-12 Port description
Port
Silkscreen Description
Parallel port PARALLEL1 Parallel signal port 1 between racks.
Parallel port PARALLEL2 Parallel signal port 2 between racks.
Network port FE Network port, connecting to the northbound
network management device or the customer's
web service.
Northbound
communicati
ons port
RS485 Connects to a third-party network management
device over two wires.
Northbound
communicati
ons port
COM Connects to an UPS.
DB26 MDU Supports FE, RS485, I2C, CAN, and other signals.
DO_1 DO_1 Reserved.
DO_2 DO_2 Reserved.
FusionDC1000A Prefabricated All-in-One Data
Center
Product Description (IT Scenario) 4 Power Supply and Distribution System
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 41
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